Azure Tan Colour Boost Tan Drops are designed to mix in with your favourite skincare serum or moisturiser or face oil? to transform it into a self tan. It can also be added to any of your favourite tanning products to make the results darker. Customise your own glow, by the?amount of drops you add. The more drops the darker the result. Made with hyaluronic?acid to add extra hydration?into your skincare.